Unvented Hot Water  
Cylinders 
 
 
 
MBM Services is a G3 qualified installer of unvented cylinders. Our engineers are highly experienced in installing, maintaining and repairing both mains pressure unvented cylinders and thermal store (vented) water heaters. 
 
We can provide a no obligation quote for a new hot water cylinder. 
 
No hot water? 
 
If you have no hot water, we can arrange a prompt call out to investigate the fault, repair it immediately where possible or provide you with a quote before any work is carried out. Please call our office on 0161 283 2285 to arrange. 
 
Unvented Cylinders must be serviced regularly to ensure optimal performance. An annual service must also be completed as a condition of the manufacturers warranty. 
We can schedule your annual service so please contact us to arrange.  
 
 
 
There are two types of mains pressure hot water systems: unvented mains pressure and vented mains pressure (thermal stores). 
 
MBM Services is a qualified installer of unvented systems and has extensive experience with both sytems. We would be happy to discuss your requirements with you with no obligation, so give us a call us today.  
 
Unvented sytems vs Thermal Store 
 
Whilst a vented water cylinder might have been more common historically, unvented hot water heaters have risen in popularity due to providing good flow rates and taking up less installation space. They are a practical option for apartments. Unvented cylinders do not require a feed and expansion tank and therefore take up less space, which is perfect for smaller living spaces.  
 
The most notable difference from vented systems is that unvented hot water cylinders are sealed as there is no vent pipe to release build up of unwanted pressure. As such, there are certain requirements to ensure that pressure can be released and so that the temperature of stored water does not exceed 100 degrees. Installation is controlled by Building Regulations and therefore must always take place by a G3 accredited company such as MBM Services. 
 
Our engineers at MBM Services are qualified to install and repair unvented hot water cylinder systems. We are also able to install and repair all aspects of vented systems, including the feed and expansion tanks. Our expert team provides a professional and reliable service. We have years of experience of hot water cylinder installation and have fitted a large number of cylinders in apartments in Manchester and across the North West. 
 
Our office team can schedule an appointment to suit your timings and our qualified engineers will be on time to your job and provide a professional service with as little disruption to your home as possible. Give us a call and we can advise you on the best solution for your needs.  
 
Most unvented hot water cylinder manufacturers recommend annual maintenance. We offer annual services and our professionals are able to sign off your service record to maintain your warranty. Give us a call to book in your service.